**********
The modules described in this chapter provide a variety of specialized data
-types such as dates and times, fixed-type arrays, heap queues, synchronized
-queues, and sets.
+types such as dates and times, fixed-type arrays, heap queues, double-ended
+queues, and enumerations.
Python also provides some built-in data types, in particular,
:class:`dict`, :class:`list`, :class:`set` and :class:`frozenset`, and
:class:`tuple`. The :class:`str` class is used to hold
-Unicode strings, and the :class:`bytes` class is used to hold binary data.
+Unicode strings, and the :class:`bytes` and :class:`bytearray` classes are used
+to hold binary data.
The following modules are documented in this chapter: